On Tue, 2023-10-24 at 15:20 +0100, Paul Durrant wrote: > On 16/10/2023 16:19, David Woodhouse wrote: > > From: David Woodhouse <dwmw@xxxxxxxxxxxx> > > > > The primary console is special because the toolstack maps a page at a > > fixed GFN and also allocates the guest-side event channel. Add support > > for that in emulated mode, so that we can have a primary console. > > > > Add a *very* rudimentary stub of foriegnmem ops for emulated mode, which > > supports literally nothing except a single-page mapping of the console > > page. This might as well have been a hack in the xen_console driver, but > > this way at least the special-casing is kept within the Xen emulation > > code, and it gives us a hook for a more complete implementation if/when > > we ever do need one. > > > Why can't you map the console page via the grant table like the xenstore > page? I suppose we could, but I didn't really want the generic xen-console device code having any more of a special case for 'Xen emulation' than it does already by having to call xen_primary_console_create().
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